Saucony Endorphin Speed 4

Who Are These Running Shoes For?

The Saucony Endorphin Speed 4 is designed for versatile runners who want a high-performance shoe that can handle everything from daily training to race day. Perfect for intermediate and advanced runners seeking speed without sacrificing comfort, these shoes excel for athletes who enjoy tempo runs, speed workouts, and races from 5K to marathon distances. The shoe particularly appeals to neutral runners who want the benefits of plated technology in a more accessible package than carbon fiber racing shoes.

Feelings and Experience

These shoes deliver an addictive, energetic ride that makes runners feel like they're floating on air. The combination of responsive foam and the nylon plate creates a springy, bouncy sensation that naturally encourages you to pick up the pace. Runners consistently describe feeling effortless speed and smooth forward motion, with many reporting that easy runs naturally turn into tempo sessions because the shoes are simply too fun to hold back. The experience is both exhilarating and confidence-inspiring.

Performance Specs

• Drop: 8mm heel-to-toe offset

• Cushioning: Maximum cushioning with PWRRUN PB superfoam

• Responsiveness: High energy return with nylon plate assistance

• Stability: Great lateral stability with wider platform design

• Pace: Optimal for 4:00-6:30 per mile (2:30-4:00 per km) tempo to race efforts

Best Distances and Maximum Speed

The Speed 4 excels at distances from 5K to marathon, with particular strength in half-marathon and shorter races. The shoe handles everything from mile race pace to marathon pace effectively. Maximum sustainable speed capabilities range from 5:00 per mile (3:06 per km) for shorter distances to 6:30 per mile (4:02 per km) for longer efforts, making it ideal for tempo runs and race-day performance.

Technologies and Materials

The shoe features PWRRUN PB superfoam midsole made from PEBA material for lightweight responsiveness and energy return. A re-engineered winged nylon plate provides structure and propulsion while maintaining flexibility. The upper uses 100% nylon engineered mesh with zonal construction for breathability and secure fit. Additional technologies include SPEEDROLL geometry for forward momentum, Super Responsive Sockliner (SRS) with nitrogen-infused foam, and XT-900 carbon rubber outsole with lattice design for durability.